Parametric Study of Erosion Wear of Solid-Liquid Mixture

Abstract

Over the last few decades there has been a phenomenal growth in the demand of raw materials.This rise in demand has led to drastic changes in the existing techniques of mining,food processing,power generation and other section where transportation of suspended solids play a major role.Due to this change,there has been an increase in requirements in slurry transportation.Slurry is mixture of solids and liquids.The most commonly used liquid is water.Material loss due to erosion liquid is a serious problem associated with flow of solid liquid mixtures.Slurry erosion limits the useful life of equipment and there efficiency.Erosion is therefore a critical parameter for design,selection transportation system.Engineering interest is to estimate the service life of equipment/components subject to slurry erosion and to investigate the possibilities of enhancement of their life.As per the application different materials are used.The present work to study of erosion wear of solid liquid mixture for its different applications.Depending upon applications different materials are selected which are used in pipes,pump and turbine blades.The materials selected are mild steel,grey cast iron 13Cr4Ni steel and 16CrNi steel.The jet type erosion taster is used to study the erosion wear by botton ash water solid liquid mixture.The bottom ash required for testing purpose was collected from Guru Govind Singh thermal power plant,Ropar,Punjab.Maximum particle size of solids is 2000u.The effect of impact angle and effect of flow rate of slurry is evaluated.